choosing-derivedstateof

What problem does it solve?

This skill helps developers decide whether to use Jetpack Compose's derivedStateOf to filter high-frequency inputs into a stable derived output, preventing unnecessary recompositions.

Core Features & Use Cases

• Identify when derivedStateOf adds value by filtering input/output frequency.
• Enforce remember { derivedStateOf { … } } and use remember keys for captured non-state values.
• Prefer snapshotFlow for one-shot side effects on derived values and avoid triggering recompositions directly.
• Real-world scenarios include scroll-driven booleans (e.g., show FAB on scroll), threshold checks, and recomposition-tracking diagnostics.

Quick Start

Identify a high-frequency input driving a low-frequency output and wrap the derived computation in remember { derivedStateOf { … } } with non-state captures as remember keys.